![]() ![]() Department of Energy SES Innovation’s cryogenic carbon capture and FuellCell Energy’s fuel cell technology for carbon capture, using electrochemical membranes to separate CO2 from industrial waste gas streams. Further areas of development include: solid sorbents are being developed by Svante in conjunction with Chevron and others the Polaris membrane by Membrane Technology and Research in collaboration with the U.S. Similarly, physical absorption solvent breakthroughs have been made such as Lurgi’s Rectisol process using chilled methanol as a solvent. Shell Global’s CanSolv is another solvent being used at the Boundary Dam project in Canada. Amine-based solvents from Mitsubishi have been used in the Petra Nova facility in Texas. Why spend money to develop and implement the technology in an environment that shows little love for fossil-based fuels. Regeneration is also needed to break absor-bent-CO2 bonds.ĭrawbacks include high energy consumption, corrosion, difficulties in scaling, and raw economics. Most attention, to date, has been lavished upon solvent-based capture i.e., the gas stream is exposed to a liquid medium to absorb CO2 via some kind of physical or chemical mechanism. Hence the term carbon capture utilization and storage (CCUS). Not only is the carbon to be captured, it also needs to be stored somewhere and increasingly utilized in some process. Current technology is expensive and energy intensive. This can be accomplished either by pre-combustion carbon separation (usually using methane steam reforming to syngas with subsequent water shift and CO2 removal) or post-combustion flue gas CO2 removal. However, the current demand is that gas-fired plants greatly reduced their carbon emissions. ![]() "Power producers have already made great strides in lowering the carbon intensity of the power sector in the U.S., largely due to retiring coal and replacing it with a combination of natural gas and renewables,” said Evan Canady, Mitsubishi Power. Such plants, by and large, do a good job at reducing emissions such as NOx and SOx. Now that coal plant emissions have been largely curtailed across much of Europe and North America, attention is swinging onto gas turbines. ![]()
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